Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2025 Jun 24;122(25):e2507837122.
doi: 10.1073/pnas.2507837122. Epub 2025 Jun 13.

Fossil fuel methane emissions likely underestimated in a model based on atmospheric δ13C trends

Benjamin T Uveges  1 , Robert W Howarth  1 , Jed P Sparks  1
Affiliations

Fossil fuel methane emissions likely underestimated in a model based on atmospheric δ13C trends

Benjamin T Uveges et al. Proc Natl Acad Sci U S A. .
No abstract available

PubMed Disclaimer

Conflict of interest statement

Competing interests statement:The authors declare no competing interest.

References

    1. Michel S. E., et al. , Rapid shift in methane carbon isotopes suggests microbial emissions drove record high atmospheric methane growth in 2020–2022. Proc. Natl. Acad. Sci. U.S.A. 121, e2411212121 (2024). - PMC - PubMed
    1. Howarth R. W., The greenhouse gas footprint of liquefied natural gas (LNG) exported from the United States. Energy Sci. Eng. 12, 4843–4859 (2024), 10.1002/ese3.1934. - DOI
    1. Institute for Energy Research, Fossil fuels remain strong in 2022 globally, despite increases in renewable energy. https://www.instituteforenergyresearch.org/international-issues/fossil-f.... 28 June 2023.
    1. Sherwin E. D., et al. , US oil and gas system emissions from nearly one million aerial site measurements. Nature 627, 328–334 (2024). - PubMed
    1. Howarth R. W., Methane emissions from the production and use of natural gas. EM Mag. 11–16 (2022).

LinkOut - more resources